A review of mantle xenoliths in volcanic rocks from southern Victoria Land, Antarctica

dc.check.date2022-04-05
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorMartin, A. P.
dc.contributor.authorCooper, A. F.
dc.contributor.authorPrice, R. C.
dc.contributor.authorDoherty, C. L.
dc.contributor.authorGamble, John A.
dc.date.accessioned2021-05-06T12:05:43Z
dc.date.available2021-05-06T12:05:43Z
dc.date.issued2021-04-05
dc.date.updated2021-05-06T11:52:13Z
dc.description.abstractMantle xenoliths from southern Victoria Land have been collected and extensively studied for over a century. In this chapter, chemical and petrological data are, for the first time, comprehensively collated and petrogenetic models for the regional mantle are reviewed and assessed. The most common lithologies are spinel lherzolite and harzburgite; plagioclase lherzolite also occurs, and pyroxenite xenoliths found across the province comprise < 20 % of all mantle xenoliths. The lithospheric mantle in the region has Palaeoproterozoic stabilization ages, though pockets of younger mantle may exist. This peridotite mantle comprises a HIMU-component sensu stricto, has been variably carbonated and has undergone multiple melt-depletion events. Regional variations in a sedimentary (EMI) component to the west, and iron-rich components to the east, reflect a complex history of refertilisation and metasomatism. The sources of these fluids are likely to have been oceanic crust subducted during c. 0.5 Ga and older events. Peridotites have been cross-cut by pyroxenite veins, probably in multiple episodes, with the geochemistry of some samples reflecting the involvement of an upper continental crust (EMII) component. Future research directions should apply advanced isotopic, noble gas and volatile techniques to better understand the upper mantle below this dynamic rifting environment.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMartin, A. P., Cooper, A. F., Price, R. C., Doherty, C. L. and Gamble, J. A. (2021) 'A review of mantle xenoliths in volcanic rocks from southern Victoria Land, Antarctica', Memoirs of the Geological Society of London, 56. doi: 10.1144/M56-2019-42en
dc.identifier.doi10.1144/M56-2019-42en
dc.identifier.issn0435-4052
dc.identifier.journaltitleMemoirs of the Geological Society of Londonen
dc.identifier.urihttps://hdl.handle.net/10468/11253
dc.identifier.volume56en
dc.language.isoenen
dc.publisherGeological Society of Londonen
dc.rights© 2021, The Authors. Published by The Geological Society of London. All rights reserved.en
dc.subjectMantle xenolithen
dc.subjectAntarcticaen
dc.subjectSouthern Victoria Landen
dc.titleA review of mantle xenoliths in volcanic rocks from southern Victoria Land, Antarcticaen
dc.typeArticle (peer-reviewed)en
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